Chapter 19 & 20 Flashcards
What part of the nervous system do adrenergic drugs stimulate
Sympathetic
What are Adrenergic drugs also called
Adrenergic agonists
Symptathomimetics
What neurotransmitters do adrenergic drugs mimic
Epinephrine
Norepinephrine
Dopamine
What are the 3 adrenergic receptors
Alpha
Beta
Dopaminergic
What are the two types of alpha receptors
Alpha 1
Alpha 2
What do alpha 1 adrenergic receptors do
Located postsynaptic on cell muscle or organ
What do alpha 2 receptors do
Located presynaptically and control release of neurotransmitters
What do alpha adrenergic agonists do to the body
Vasoconstriction
CNS stimulation
Where are beta 1 adrenergic receptors located
Heart
Where are beta 2 adrenergic receptors located
Lungs
What do beta adrenergic agonists do to the body
Relax GI bronchial and uterine muscle
Glycogenolysis
Cardiac stim
What does stimulation of dopaminergic receptors do
Vasodilation of renal mesenteric coronary and cerebral
Stimulation of alpha frenetic receptors on smooth muscles cause
Vasoconstriction
Relax Gi muscle
Constrict sphincters
Male ejaculation
Contract uterus
Dilate pupils
What do indirect acting sympathomimetics do
Release catecholamines from storage sites
What do mixed acting sympathomimetics do
Stimulate receptors by binding to them
Stimulation of B1 adrenergic receptors on cardiac cause
Increased contraction
Increased HR
Increased conduction
Stimulation of B2 adrenergic receptors cause
Bronchodilation
What do Adrenergic blocking drugs do
Inhibit stimulation of sympathetic nervous system
What do alpha adrenergic blockers do
Vasodilation
Reduce prostate size
What do Adrenergic beta blockers do
Depend if it is B1 or B2
Decrease HR, contractility, conduction
Constrict bronchioles
Which adrenergic blocker can cause hypotension
Alpha blockers
Stopping Adrenergic blockers can cause
Rebound hypertension
